The link that starts with ia300032 points to a particular hard drive. Our engineers run operations that change the location of items on hard drives, as part of routine maintenance, space efficiency, etc.
So when you want to share a link, please note you want to share the permanent link!
One more tip: When you upload your video or other item, please do include a sentence or two description. It helps more viewers find your work (now and in the future! Archive.org does forward migration of video items).
It also helps your item not get tagged as spam by the spam filter. (so real words matter here.)
Archive.org can handle metadata in just about any language, so long as it's coded in UTF-8: